Steam-trap.



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STEM TRAP.

(Appncnion med my 12, 11502.) (lo Model.)

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@dw/ZM @5% UNITED STATES PATENT GFF/1G12.

AUGUST SILK AND PETER LIGHT, OF CINCINNATI, `OHIO.`

STEAM-TRAP.

SPECIFICATION forming part of Letters Patent No. 712,441, dated October 28, 1902. Appn'atnn inea May 12, 1902. serai No. 105,859. mamada' A This invention relates to certain improvements in details of construction of steamstraps, as more fully set forth hereinafter.

In the following specification, and particu larly pointed out in` the claims at the end thereof, is found a full description of the invention, together with its operation, parts, and construction,` which latter is also illustrated in the accompanying drawings, in which- Figure l is a side viewof our trap complete. Fig. 2 is a longitudinal section of the same. Fig. 3 is a top view` with theinlet-opening open and parts broken away. Fig. 4=is a vel tical cross-section on line 4 4 of Fig. 2. Fig. 5 is a similar section on line 5 5 of Fig. 2.

Fig. 6 in an enlarged sectional detail view' shows the outlet-valve, its seat, and theattaching-nipple which supports this latter.

9 is a housing of suitable shape and size, which may be supported `inany convenient manner-as, for instance, it may rest on legsl It has an inlet-opening 11 to permit ac` cess for placing the operating parts andfor any other purposes, which openingis' nor- In 'its upper part it is provided with a steam-inlet 13 and in itsI mally closed by a cap 12.

lower part with an outlet 14 to permit exit of the accumulating condensation. This outlet is controlled by a valve 15, supported so as to be capable of moving in a vertical direction to or from its seat 16. This valve-seat is formed in a separatepece, (see Fig. 6,) which is independently removable formepair or renewal, and rests within a nipple 17, which serves at the same time as a means for connecting` the outlet-pipe `18. This nipple is held in positionby means of a union coupling 19 to a plug2l, which screws in the outlet-opening 14 of the housing. Forits movement valve 15 is connected to the lower end of a rod 22, preferably removable, the upper time to time.

`end of which connects to the free end of one of the branches of an angle-lever 24. At its pivot it is laterally extended, forming trunnion-journals 25, one on each side, the outer ends of which are pivotally supported between the forked branches 26 of a post 27. This latter is attached to the bottom of the hous- "ing. To the free end of the other branch of the angle-lever there connects an arm 29, which on its free end carries a float 3l. It will now be understood that as soon as the accummulated condensation lifts the float the outlet-valve follows and permits exit of part of the accumulation until this latter recedes ,to its` normal level,'when"said valve closes again. The action of the valve is very prompt and quite sensitive to the actions of` the float, to the movements of which itresponds freely, since the center on which its Vsupporting-arm swingsiscoincident withthe fulcrum of the angle-lever. The movementof the valve is not extensive, and the' same readily guides itself to and from its seat; ibut, if necessary, suitable means for guiding it may be provided-like, for instance, .the customary lateral wings commonly used on valves. The Vinlet-opening is provided with a pipe 33.

Steam-traps accumulate usually more or `less sediment, which requires removal from We use the normal outletvalve to do this, and accordingly provide m'eanslwhereby this valve may be raised and fAheldj open `independently of thefloat. For such purpose we provide a rod 34, disposed transversely below the float-arm 29 and supportedin the side of the housing. It is provided with a projection in the. shape of an eccentrically-mounted cam 35, which is so at- -tached as to be below iioatarm 29,1so that when rod 34: is rotated it is capable of raising said arm. For its manipulation one end at least of this rod projects to the outside of the housing, where it is provided with a han-` dle 36. Normally it is so turned that this projection 35 does not come in contact with arm 29 when the float isin its` lowest position, so as not to interfere with the closing ofthe outlet-valve. The extreme positions of this cam when inactive or when used to open the valve may be indicated on the outside of the housing by means of stops 37, operating in conjunction with handle 36 and limiting the movement of the same. As a matter of con- IOO venience and to suit positions of the trap and possibilities of access thereto we permit both ends of rod 24: to project, so that handle 36 may be attached on either side of the trap. At its end where this rod passes through the sides of the housing it is necessary to provide stuffing-boxes 38. In view of the fact that we use this outlet-Valve also as a blow-o Valve,we favor the accumulation of sediment near it and its movement toward it by providing a pocket 39, in `the deepest part of which the outlet is located. 4:1 is a conventional glass gage to show the level of accumulation. It will be noted that the moving parts of this valve are reduced to a minimum, thus reducing friction and wear, all of which results in a device reliable and effective in operation and quickly affected by any variations in the level of the accumulation. While all parts are inclosed, they are also readily accessible for inspection and repair or renewal, and parts most subject to wear, like valve 15 or its seat, may be had access to and renewed from the outside by simply removl ing coupling 19.

Having described our invention, we claim as new- 1. In a steam-trap, the combination of a closed housing, a steam-inletin the upper part thereof, an outlet-opening in the lower part, a screw-plug 2l fitted from below into this outlet-opening and projecting with its lower end below the outside of the trap, a pipe-attaching nipple 17, a union coupling 19 whereby the same is removably attached to the lower free end of the screw-plug, a valve-seat member 16 fitted detachably between the upper end of nipple 17 and the lower end of plug 21, a valve fitted to this seat so as to control the outlet-opening, a swinging ioat-arm there on and operative connection between it and the outlet-valve mentioned whereby thesame is automatically actuated by the movements of the iioat.

2. In a steam-trap, the combination of a box-shaped housing, an access-opening in its top, a cap to close this openinga steam-inlet, an outlet-opening for the condensation, a valve controlling the same, a pipe-attaching nipple 17, an independent valve-seat member 16, a plug 21 fitted into the outlet-opening, a coupling whereby this nipple is detachably connected in position below the outlet-opening, a valve 15' fitted to valve-seat 16, a rod 22 to the lower end of which valve 15 is connected, an angle-lever 24 to one of thefree ends of which the upper end of this rod is attached, a post 27 having branches26 between which the angle-lever is pivotally supported, said ypost being immediately below the access-opening in the top of the trap, an arm .29 connected to the other end of the angle-lever, aoat at the free end of this arm to automatically actuate the angle-lever and means accessible from the outside to positively raise vthis arm.

3. In a steam-trap, the combination of a box-shaped housing, an access-opening in its top, a cap to close this opening, a steam-inlet, a pocket 39 formed by a depression in its otherwise iat bottom, an outlet-opening in the deepest part of this pocket, a pipe-attaching nipple 17, an independent valve seat member 16, a plug 21 fitted into the outletopening, a coupling whereby this nipple is detachably connected in position below the outlet-opening, a Valve 15 itted to valve-seat 16, a rod 22, to the lower end of which valve 15 is connected, an angle-lever 24 to one of the free ends of which the upper end of this rod is attached and which is laterally enlarged to form trunnions 25 on both sides, a post 27 having branches 26 between which the angle-lever is pivotally supported, said post being immediately below the access-opening in the top of the trap, an arm 29 connected to the other end of the angle-lever, a float at the free end of this arm to automatically actuate the angle-lever and means accessible from the outside to positively raise this arm. 4. In a steam-strap, the combination of a closed housing, a steam-inlet in the upper part thereof, a pocket in the otherwise flat bottom, an outlet-opening in the lowest part of this pocket, a screw-plug 21 fitted from below into this outlet-opening and projecting with its lower end below the outside of the trap, a pipe-attaching nipple 17, a union coupling 19 whereby the same is removably attached to the lower free end of the screwplug, a valve-seat member 16 fitted detachably between the upper endof nipple 17 and the lower end of plug 21, a valve fitted to this seat so as to control the outlet-opening, a swinging oat-arm thereon and operative connection between it and the outlet-Valve mentioned whereby the same is automatically actuated by the movements of the float.

, 5. In a steam-trap, the combination of a closed housing, a steam-inlet in the upper part thereof, an outlet-opening in the lower part, a screw-plug 21 fitted from below into this outlet-opening and projecting with its lower end below the outside of the trap, a pipe-attaching nipple 17, a union coupling 19 whereby the same is removably attached to the lower free end of the screw-plug, a valveseat member 16 fitted detachably between the upper end of nipple 17 and the lower end of plug 21, afvalve fitted to this seat so as to ycontrol the outlet-opening, a swinging ioatarm thereon, operative connection between it and the outlet-valve mentioned whereby the same is automatically actuated by the movements of the float and means accessible from the outside whereby this float-arm may be positively actuated by manual operation. In testimony whereof we hereunto set our signatures in the presence of two witnesses.

AUGUST SILK. PETER LIGHT. Witnesses:

C. SPENGEL, ARTHUR KLINE.

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